Global Patent Index - EP 0511141 A1

EP 0511141 A1 19921028 - Error correction encoding method comprising at least two parallel systematic convolutional encoding, iterative decoding method, decoding module and decoder therefor.

Title (en)

Error correction encoding method comprising at least two parallel systematic convolutional encoding, iterative decoding method, decoding module and decoder therefor.

Title (de)

Fehlerkorrekturkodierungsverfahren mit mindestens zwei parallellen, systematischen Faltungsenkoder, iteratives Dekodierungsverfahren, Dekodierungsmodul und Dekoder dafür.

Title (fr)

Procédé de codage correcteur d'erreurs à au moins deux codages convolutifs systématiques en parallèle, procédé de décodage itératif, module de décodage et décodeur correspondants.

Publication

EP 0511141 A1 19921028 (FR)

Application

EP 92460013 A 19920422

Priority

FR 9105280 A 19910423

Abstract (en)

The field of the invention is that of the encoding of digital data intended to be transmitted or broadcast, in particular in the presence of strong transmission noise, and of the decoding of the coded data thus transmitted. The invention relates to an error-correction encoding method for digital source data (d), implementing in parallel at least two independent systematic convolutional encoding steps (11, 13), each of the said encoding steps (11, 13) embracing all the said source data (d), and including at least one step (12) of temporal interlacing of the said source data (d), modifying the order of embracing of the said source data (d) for each of the said encoding steps (11, 13). The invention also relates to an iterative decoding method using for the decoding, at each iteration, an intermediate datum obtained by combining the datum received with a datum estimated during the preceding iteration. <IMAGE>

IPC 1-7

H03M 13/12; H03M 13/22

IPC 8 full level

H03M 13/23 (2006.01); H03M 13/27 (2006.01); H03M 13/29 (2006.01); H03M 13/39 (2006.01); H04L 1/00 (2006.01)

CPC (source: EP US)

H03M 13/23 (2013.01 - EP US); H03M 13/27 (2013.01 - EP US); H03M 13/2957 (2013.01 - EP US); H03M 13/2987 (2013.01 - EP US); H03M 13/39 (2013.01 - EP US); H03M 13/6362 (2013.01 - EP US); H03M 13/658 (2013.01 - EP US); H04L 1/005 (2013.01 - EP US); H04L 1/0066 (2013.01 - EP US); H04L 1/0068 (2013.01 - EP US); H04L 1/0071 (2013.01 - EP US)

Citation (search report)

  • [A] FR 2616986 A1 19881223 - MATRA [FR]
  • [A] EP 0235477 A1 19870909 - THOMSON CSF [FR]
  • [A] US 4677625 A 19870630 - BETTS WILLIAM L [US], et al
  • [A] US 4677626 A 19870630 - BETTS WILLIAM L [US], et al
  • [A] US 3652998 A 19720328 - FORNEY GEORGE DAVID JR
  • [A] ELECTRONICS AND COMMUNICATIONS IN JAPAN vol. 66, no. 4, Avril 1983, SILVER SPRING, MARYLAND, USA pages 20 - 28; NAKANO ET AL: 'NEW DECODING METHODS OF INTERLEAVED BURST ERROR-CORRECTING CODES'
  • [AD] ELECTRONICS LETTERS vol. 25, no. 22, 26 Octobre 1989, STEVENAGE, HETS.,G. pages 1517 - 1518; DUNSCOMBE ET AL: 'OPTIMAL INTERLEAVING SCHEME FOR CONV0LUTION CODING'
  • [A] COMSAT - TECHNICAL REVIEW vol. 14, no. 2, 1984, WASHINGTON, DC, USA pages 261 - 284; MACKENTHUN: 'BLOCK ORTHOGONAL CONVOLUTIONAL CODING FOR THE INTELSAT TDMA DATA CHANNEL'
  • [A] ONZIEME COLLOQUE GRETSI 1 Juin 1987, NICE, FR pages 217 - 220; BATTAIL ET AL: 'DECODAGE PONDERE DES CODES CONCATENES AVEC CODE INTERIEUR CONVOLUTIF'

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

EP 0511141 A1 19921028; EP 0511141 B1 19961211; DE 69215743 D1 19970123; DE 69215743 T2 19970710; DE 69231938 D1 20010816; DE 69231938 T2 20020404; EP 0735696 A2 19961002; EP 0735696 A3 19990113; EP 0735696 B1 20010711; FR 2675971 A1 19921030; FR 2675971 B1 19930806; HK 1007841 A1 19990423; US 5446747 A 19950829

DOCDB simple family (application)

EP 92460013 A 19920422; DE 69215743 T 19920422; DE 69231938 T 19920422; EP 96107690 A 19920422; FR 9105280 A 19910423; HK 98106926 A 19980626; US 87061492 A 19920416